2018 Mercedes-Benz A-Class 1.5L Diesel · CE64 JOY

The 2018 Mercedes-Benz A-Class presents a mixed roadworthiness picture marked by recurring tyre and braking system concerns that have persisted across several years, culminating in a clean 2026 MOT pass that masks underlying issues requiring attention. The vehicle has experienced multiple failed assessments prior to 2026, including a 2025 failure driven by severe tyre bulges on both front and rear wheels and a 2023 failure involving worn rear brake discs alongside continued front brake disc wear, while the most recent 2026 test confirmed the front brake discs are present but still showing wear rather than being excessively damaged. This pattern of intermittent failures interspersed with passes indicates a car that remains roadworthy but carries persistent mechanical vulnerabilities that could become more pronounced under certain driving conditions or if maintenance has not kept pace with the documented deterioration. At 79,780 miles after eight years of ownership, the vehicle accumulates approximately 9,970 miles annually, which aligns with expected usage patterns for its age and reflects moderate daily or weekly mileage rather than extreme high-use or prolonged idling scenarios. The mileage progression shows improvement between the 2021 and 2022 tests where both front and rear tyres were reported worn close to legal limits, followed by a return to passing status in 2024 before the 2025 and 2023 failures reintroduced tyre and brake disc concerns. While the annual rate appears consistent, the presence of two consecutive failures within a 24-month window (2023–2024) suggests that either the tyre wear is accelerating faster than anticipated or that underlying factors such as road surface quality or driving style are contributing to accelerated degradation of the wheel assembly and braking components. Focused on the flagged systems, the front brake discs should be inspected for any audible knocking or vibration during acceleration through speed bumps, as the current advisory level confirms they are worn but not critically compromised; however, given their proximity to the failure threshold seen in 2023, a closer visual examination of pad thickness and disc surface texture would be prudent. Both the front and rear tyres exhibit multiple problem areas—bulges on the inner sidewalls indicating structural separation and near-limit wear on the outer edges—which on a test drive would manifest as a pulsating or knobby feeling when traversing rough sections, uneven braking performance, or a tendency for the rear end to pull slightly during hard stops. The rear brake discs, previously scored and pitted in 2023 and again noted in 2024, merit particular attention: listening for a soft or spongy brake pedal response and checking for any dragging noises when applying the brake, especially at lower speeds, as these indicators point toward internal wear or scoring that may not yet reach the critical failure stage but could progress quickly. For a prospective buyer, the most actionable steps centre on verifying the condition of the front brake discs immediately before purchase, as their current advisory level places them in a zone where continued use could compromise safety margins; requesting a detailed inspection report from the garage that performed the 2026 MOT will clarify whether the wear is superficial or requires replacement. The tyre situation demands extra caution given the documented bulge formations and edge-worn tread on both axles—these are not merely cosmetic but signal potential structural integrity issues that could lead to sudden blowouts under stress, particularly on longer journeys or descents. Finally, the recurrent rear brake disc problems warrant a thorough bed-down period after acquisition, monitoring for any change in pedal feel or braking consistency, and considering a professional brake inspection within the first few hundred kilometres to ensure the scored surfaces have stabilised and are not showing signs of progressive deterioration.